Nut-locking device.



No. 819,289. PATENTED MAY 1, 1906.

A. KOOTZ & E. E. SGHIRMER.

NUT LOCKING DEVICE. APPLICATION FILED 822127, 1905. Y

* 'illllll witnesses nwwfozs $513 al ke once;

. inafter explained, forme UNITED STATES PATENT OFFICE. 9

ALBERT KOOTZ AND EDWARD EVERETT SCHIRMER, OF PARKERSBURG, WEST VIRGINIA, ASSIGNORS OF'ONE-THIRD TO HENRY C. JACKSON, OF PARKERSBURG, WEST VIRGINIA. I f

inia, have invented certain new and usefulv m rovements in Nut-Locking Devices, of which the following is a specification.

Our invention relates to an improvement in nut-locking devices, and the ob ects of our invention are to provide a device or tool simple and cheap to manufacture, yet efiicient and simple in its 0 eration. We attain these objects in the imp ement illustrated and described in the accompanying drawings and desori tion.

In t e drawings like numerals of reference refer to like parts throughout the respective views.

Flgure '1 is a side elevation of the device.

Fig. 2 is an elevation of a bolt and nut and an end or edge elevation of the tool in position for locking. Fig. 3 is a side elevation of the tool and sectional view of the bolt and .nut after the operation of locking.

In the fi res, 1 is the body of the tool, 2 being the b ade or wedge.

3 is the lower or entering edge of the blade or wed e. c

4 in icates teeth or swaging-spurs, as hereby cutting. away the metal of the tool at an angle, as shown at 5.

6 is a bolt, 7 a nut thereon, .and '8 a slot in the end of the bolt.

9 9 indicate the spurs of metal of the nut forced into the slot by the spurs 4 4 after the locking is com lete.

The metho of 100 a nut on a bolt by the use of the tool formm the subject-matter of this application is 'sclosed at len th in an applicatlon filed by us on the 27th ay of September, 1905, Serial No. 280,269. Briefly, however, it. consists in driving the tool into the endof a bolt, and thus spreading the walls of the latter, so as to force them against the interior of the nut and then forcing the material of the nut into the spread end of the bolt and between the separated walls in a direction substantially at right angles thereto.

Specification of Letters Patent. Application filed September 27, 1905. serial No. 280,270.

' On reference to the NUT-LOCKING DEVICE.

Patented May 1, 1906.

fi res the functions of the various parts of the d vice will be evident.

The body 1 is similar to that of an ordinary cold-chisel. The blade portion 2, both as a whole and also in the portion 3, is given a sufficient ta er in two dimensions, as shown in Figs. 1 an 2, to insure, first, the wedging or spreading action; second, the com resslng action, and, third, to permit easy wit drawal from the locked nut and bolt.

The spurs, teeth, or swa es 4 are given an angular form, so that on eing driven into the upper surface of the nut'they will compress, swage, or force the material thereof in toward the center and so into the open end of the bolt, as above set forth. The lower part 3 is made of such width that it can be withdfawn after the action last mentioned is comp ete.

I do not limit myself to the exact design, shape, or proportion shown or described herein or to any particular material, as I may depart from these in some details without departing from the substance of my invention.

Where I have used the word swage,' swaging, or swa es I desire to be understood to mean by n's'the act of compressing or upsetting or rearranging the particles of meta or the particular devices for producing this eflectin this case, particularly,

"to act at right angles tothe main body of the wedge.

2. A wedge shape, the lower edge of which is out back so as to leave a central wedge portion of less width than the whole and form two swaging-spurs one on each side of the'cen- 'tral wedge, the operating-faces of which are.

at right angles to the operating-faces of the wedge as a whole.

nut-locking tool having a general 3. A nut-locking device having a wedgesha ed blade, and two swaging-s urs opposite y disposed in the plane of the lade.

4. A nut-locking tool having a wedgeto act at right angles to the main part 0 the shaped blade, and op ositel -disposed swages I lying in theplane o the b ade and ada ted wedge.

,5. A nut-locking tool having a eneral wedge shape, and having the lower e go out back so as to leave a central projecting portion, and two flanking swagingspurs lying in the plane of the blade.

6. A nut-locking tool having a wedgesha ed blade, and two swa ing-spurs opposite y disposed relative .to t e main part of the blade, and having their outside faces diverging from the axial line of the-blade and them inside faces convergin thereto.

7. A nut-locking tool aving a wedgeshaped blade, and two swaging-spurs oppo- .Signed at plane and adapted to act at right angles to the expandin Wedge. I

arkersburg, in the county of Wood and State of West Virginia, this 31st dayof August, A. D. 1905-.

Witnessesz H. WOODYARD, A. D. IRELAND. 

